Home / 849,103.45-1,171,930.07-486,770.40

Finding the Fourth Proportional to 849,103.45, 1,171,930.07 and 486,770.40

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Solution

The fourth proportional to 849,103.45, 1,171,930.07 and 486,770.40 is: 671,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,103.45 : 1,171,930.07 = 486,770.40 : x
  2. Step 2: Convert to fraction form
    849,103.45/1,171,930.07 = 486,770.40/x
  3. Step 3: Cross multiply
    849,103.45x = 1,171,930.07 × 486,770.40
  4. Step 4: Simplify right side
    849,103.45x = 570,460,870,162.85
  5. Step 5: Solve for x
    x = 570,460,870,162.85/849,103.45
  6. Step 6: Final answer
    x = 671,839.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.